. >> the inauguration of dc's biggest party every four years. of course to have to have a party planner. inside the maryland workshop. >> preparations are well underway for the second inauguration of president barack obama. >> it is a massive undertaking involving thousands of people. the thousands of people will crowd into the grassy area of the national mall for the start of the official activities with the national day of service. biggest crowd is expected to go up to 800,000. they cannot have an inauguration without a presidential propman. the keeper of the official props is located here in maryland. a peek inside his workshop. >> this is the inauguration nerve center. hargrove headquarters. it is packed to the rafters with a stage skeletons, parade float parts, the largest inaugural field would have ever seen. >> you're the keeper of the inaugural seal. >> it is in this company's dna. since its first event in 1949 for president truman, hargrove has had a hand in every one's since. in 2013, the company's 70 the inauguration, hargrove is once